Swedish Centre of Resource Recovery, University of Borås, 501 90 Borås, Sweden.
Department of Chemical and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden.
Bioresour Technol. 2014 Jun;161:446-50. doi: 10.1016/j.biortech.2014.03.107. Epub 2014 Apr 1.
The effects of N-methylmorpholine-N-oxide (NMMO) pretreatment on barley straw and forest residues were investigated for biogas production. The pretreatments were performed at 90°C with 85% NMMO for 3-30h. The best pretreatment conditions resulted in 100% improvement in methane yield during the subsequent digestion compared to that of the untreated lignocelluloses. Methane yields of 0.23 and 0.15Nm(3) CH4/kg VS were obtained from barley straw and forest residues, respectively, corresponding to 88% and 83% of the theoretical yields. In addition, the effects of the pretreatment with recovered and reused NMMO was also studied over the course of five cycles. Pretreatment with recycled NMMO showed the same performance as the fresh NMMO on barley straw. However, pretreatment of forest residues with recycled NMMO resulted in 55% reduction in methane yield.
研究了 N-甲基吗啉-N-氧化物（NMMO）预处理对大麦秸秆和森林残留物进行沼气生产的影响。预处理在 90°C 下用 85%的 NMMO 进行 3-30 小时。最佳预处理条件可使随后消化过程中的甲烷产量比未经处理的木质纤维素提高 100%。从大麦秸秆和森林残留物中分别获得了 0.23 和 0.15Nm(3) CH4/kgVS 的甲烷产量，分别达到理论产量的 88%和 83%。此外，还研究了在五个循环过程中使用回收和再利用的 NMMO 进行预处理的效果。回收 NMMO 的预处理对大麦秸秆的性能与新鲜 NMMO 相同。然而，用回收的 NMMO 预处理森林残留物会导致甲烷产量减少 55%。
